Urine metals concentrations and dyslexia among children in China
Clicks: 289
ID: 106132
2020
Background: Exposures to heavy metals has been linked to many developmental disorders. However, few studies have investigated the effects of exposure and co-exposure to metals on dyslexia, especially with regard to dyslexics in China. Objectives: To investigate the association between urine metal concentrations and dyslexia in a case-control study among children in China. Methods: A case-control study was conducted in the Tongji Reading Environment and Dyslexia (READ) research program. A total of 228 dyslexics and 228 controls were matched on gender, age (within one year), and grade. The concentrations of 21 urine metals were measured by an inductively coupled plasma-mass spectrometer (ICP-MS). Multivariable conditional logistic regression models were applied to estimate the adjusted odds ratios (ORs) of Chinese dyslexia. Results: After adjusting for potential confounders, two metals (selenium and argentum) were significantly associated with dyslexia in single-metal multivariable models. Argentum was positively associated with the risk of dyslexia, while selenium was negatively associated. In the multiple-metal model, compared with extreme quartiles, the ORs (95% CIs) for selenium was 0.36 (95% CI: 0.14–0.93; Ptrend = 0.029). In the joint association analysis, children with higher levels of urine argentum and lower level of urine selenium had a significantly higher risk of dyslexia than those with low levels of argentum and selenium (OR = 5.06, 95% CI: 1.67–18.84). Conclusions: The findings suggest that exposure to selenium and argentum may relate to dyslexia in China. Longitudinal studies are needed to further evaluate these relationships and investigate potential mechanisms. Keywords: Chinese dyslexia, Urine metal, Case-control study
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xue2020urineenvironment
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| Authors | Xue, Qi;Zhou, Yu;Gu, Huaiting;Xie, Xinyan;Hou, Fang;Liu, Qi;Wu, Hao;Zhu, Kaiheng;Wan, Zihao;Song, Ranran; |
| Journal | Environment international |
| Year | 2020 |
| DOI | DOI not found |
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